Please dont.
Probably someone else has another opinion on that, and I appreciate it.
But, from my point of view: First, learn through free Articles here on NamesPro, Extend your knowledge, check Trends, and as an optional point which might help you (this is the only course I'm doing - paid 12k$ Digital Marketing Course), but I would never do it for a Hobby like Domain Trading.
It is for my primary income.
Otherwise, the Internet is complete with free Stuff.
Start with the lowest budget and invest in your knowledge through meaningful FREE courses. There are a bunch of content creators, Article writers & sometimes Udemy Courses you can learn from.
If I hear "paid course or joining the community," I get Andrew Tate Vibes or people who want to be your Lifecoach.
Charging people 1k+ to teach them oversaturated income stream methods while already doing something new. Earning from people who most likely have little income and telling them shi*.
Go through the Forum and read the Articles. I will link you some later—there are a bunch of Guides split into Parts.
"Domaining for Beginners," I guess.
If you use the Search Function and type "Domain Tools" or something similar, you will find things you need to know.
And remember (Evergreen sentence): This is not a sprint, but a marathon.
You have a great community here, helping each other without judging, so take advantage of it. First, read the article, which will help you gain essential knowledge.
Start with the following Beginner Collection, and you will gain a lot of knowledge. If there are questions, raise them.
https://www.namepros.com/threads/popular-domain-beginner-resources.844937/
There you go.
Best
zotix